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Finding the Fourth Proportional to 370,662.60, 511,523.33 and 209,518.23

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Solution

The fourth proportional to 370,662.60, 511,523.33 and 209,518.23 is: 289,140.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,662.60 : 511,523.33 = 209,518.23 : x
  2. Step 2: Convert to fraction form
    370,662.60/511,523.33 = 209,518.23/x
  3. Step 3: Cross multiply
    370,662.60x = 511,523.33 × 209,518.23
  4. Step 4: Simplify right side
    370,662.60x = 107,173,461,657.72
  5. Step 5: Solve for x
    x = 107,173,461,657.72/370,662.60
  6. Step 6: Final answer
    x = 289,140.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.